On June 17, 2017, a 37-year-old Édgar Sosa (52-10, 30 KOs) and a 22-year-old fellow Mexican boxer Julio Cesar Martinez (5-1, 3 KOs) met in the ring.
Sosa came in to the fight on a 1-fight losing streak with a 48% KO rate, and was fighting after a gap of 8 months and 24 days. Martinez was on a 5-fight win streak with a 50% KO rate, and fighting after a layoff of 8 months and 16 days.
Julio Cesar Martinez defeated Édgar Sosa via unanimous decision in the 8-round fight. Martinez improves his record to 6-1, while Sosa adds a loss to his record at 52-11.
On September 24, 2016, a 37-year-old Édgar Sosa (52-9, 30 KOs) and a 34-year-old Filipino boxer Donnie Nietes (38-1-4, 22 KOs) met in the ring in a flyweight bout.
Sosa came in to the fight on a 1-fight win streak with a 49% KO rate, and was fighting after a gap of 7 months and 11 days. Nietes was on a 7-fight win streak with a 51% KO rate, and fighting after a layoff of 3 months and 27 days.
Donnie Nietes defeated Edgar Sosa via unanimous decision in the 12-round flyweight fight. Nietes improves his record to 39-1-4, while Sosa adds a loss to his record at 52-10.
On May 16, 2015, a 35-year-old Édgar Sosa (51-8, 30 KOs) got a shot at the flyweight WBC and The Ring title held by 27-year-old Nicaraguan boxer Román González (42-0, 36 KOs).
Sosa came in to the fight on a 2-fight win streak with a 50% KO rate, and was fighting after a gap of 6 months and 8 days. González was on a 42-fight win streak with a 85% KO rate, and fighting after a layoff of 2 months and 18 days.
Román González made very easy work of Édgar Sosa, stopping the challenger via TKO in the 2nd. González improves his record to 43-0 (37 KOs), while Sosa adds a loss to his record at 51-9.
On December 6, 2013, a 34-year-old Édgar Sosa (49-7, 29 KOs) got a shot at the flyweight WBC and The Ring title held by 30-year-old Japanese boxer Akira Yaegashi (18-3, 9 KOs).
Sosa came in to the fight on a 6-fight win streak with a 51% KO rate, and was fighting after a gap of 6 months and 18 days. Yaegashi was on a 3-fight win streak with a 42% KO rate, and fighting after a layoff of 3 months and 24 days.
Akira Yaegashi defeated Edgar Sosa via unanimous decision and successfully defended his WBC and The Ring flyweight titles. Yaegashi improves his record to 19-3, while Sosa adds a loss to his record at 49-8.
On October 21, 2011, a 32-year-old Édgar Sosa (43-6, 26 KOs) got a shot at the flyweight WBC title held by 34-year-old Thai boxer Pongsaklek Wonjongkam (82-3-1, 43 KOs).
Sosa came in to the fight on a 6-fight win streak with a 53% KO rate, and was fighting after a gap of 3 months and 19 days. Wonjongkam was on a 15-fight win streak with a 50% KO rate, and fighting after a layoff of 2 months and 17 days.
Pongsaklek Wonjongkam defeated Edgar Sosa via unanimous decision and successfully defended his WBC and The Ring flyweight titles. Wonjongkam improves his record to 83-3-1, while Sosa adds a loss to his record at 43-7.
On November 21, 2009, the 30-year-old WBC light-flyweight world champion, Édgar Sosa (37-5, 21 KOs), faced Rodel Mayol, in a title defense fight.
Sosa came in to the fight on a 25-fight win streak with a 50% KO rate, and was fighting after a gap of 2 months and 6 days.
Édgar Sosa was defending his light-flyweight WBC titles against Rodel Mayol and lost via TKO in the 2nd round, and adds an loss to his record at 37-6.
On September 13, 2003, a 24-year-old Édgar Sosa (12-4, 7 KOs) and Ulises Solís met in the ring for the 2nd time, in a flyweight bout.
Sosa came in to the fight on a 1-fight losing streak with a 43% KO rate, and was fighting after a gap of 2 months and 10 days.
Édgar Sosa lost to Ulises Solís via majority decision in the 12-round flyweight fight, and adds an loss to his record at 12-5.
On July 3, 2003, a 23-year-old Édgar Sosa (12-3, 7 KOs) and Isaac Bustos met in the ring in a strawweight bout.
Sosa came in to the fight on a 1-fight win streak with a 46% KO rate, and was fighting after a gap of 3 months and 4 days.
Édgar Sosa lost to Isaac Bustos via majority decision in the 12-round strawweight fight, and adds an loss to his record at 12-4.
On October 19, 2002, a 23-year-old Édgar Sosa (11-2, 6 KOs) and Omar Niño Romero met in the ring.
Sosa came in to the fight on a 3-fight win streak with a 46% KO rate, and was fighting after a gap of 28 days.
Édgar Sosa lost to Omar Niño Romero via unanimous decision in the 10-round fight, and adds an loss to his record at 11-3.
On November 3, 2001, a 22-year-old Édgar Sosa (8-1, 5 KOs) and Manuel Vargas met in the ring.
Sosa came in to the fight on a 3-fight win streak with a 55% KO rate, and was fighting after a gap of 1 month and 28 days.
Édgar Sosa lost to Manuel Vargas via TKO in the 8th round, and adds an loss to his record at 8-2.
On May 5, 2001, a 21-year-old Édgar Sosa (5-0, 2 KOs) and Ulises Solís met in the ring.
Sosa came in to the fight on a 5-fight win streak with a 40% KO rate, and was fighting after a gap of 3 months and 8 days.
Édgar Sosa lost to Ulises Solís via split decision in the 6-round fight, and adds an loss to his record at 5-1.